The Valve,flow Control, cataloged under National Stock Number 4820-01-502-0539, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (CAGE 30780) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-502-0539 |
| Primary Part Number | F800SS |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| F800SS PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 50306003 | D/9 Drawing number reference only Gulf Coast Holdings, Inc Dba Unidynamics |
| EF30SS | 3/2 Design control — primary reference U.S. Government activity |
| 50306003-1 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 50306003-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| PF800SS | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
NSN 4820-01-502-0539 is a Valve,flow Control, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-502-0539 has 1 manufacturer part number on file: F800SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.